eat somebody alive
eat somebody aˈlive(informal)
1 (also have/eat somebody for ˈbreakfast) criticize or punish somebody severely because you are extremely angry with them
2 (also have/eat somebody for ˈbreakfast) defeat somebody completely in an argument, a competition, etc: The defence lawyers are going to eat you alive tomorrow. ♢ The union leader eats managers for breakfast!
3 (usually used in the passive) (of insects, etc.) bite somebody many times: I was being eaten alive by mosquitoes.